scholarly journals Streptomyces rubrisoli sp. nov., neutrotolerant acidophilic actinomycetes isolated from red soil

2015 ◽  
Vol 65 (Pt_9) ◽  
pp. 3103-3108 ◽  
Author(s):  
Xiaoxuan Guo ◽  
Limin Zhang ◽  
Xiaomin Li ◽  
Yongsheng Gao ◽  
Jisheng Ruan ◽  
...  

Three neutrotolerant, acidophilic actinomycete strains, designated FXJ1.526, FXJ1.725T and FXJ1.726, were isolated from red soil collected from Liujiazhan, Jiangxi Province, China. Phylogenetic analysis based on 16S rRNA gene sequences indicated that the three strains clustered together and their closest relative was Streptomyces ferralitis CGMCC 4.1985T (98.9–99.0 % similarity). Multilocus sequence analysis confirmed their relationship to S. ferralitis and separated these strains as representing a novel species. Mean DNA–DNA hybridization values among strains FXJ1.526, FXJ1.725T and FXJ1.726 were 81.6 ± 3.5–87.2 ± 3.8 %, and the values between the three strains and S. ferralitis CGMCC 4.1985T were well below 70 %. The three strains also shared several phenotypic characteristics that were distinct from the closely related species. They grew at 21–50 °C, at pH 4.0–9.0 (with an optimal pH of 5.0) and with 0–3 % (w/v) NaCl, and the major cellular fatty acids were anteiso-C15 : 0, iso-C15 : 0 and iso-C16 : 0. On the basis of data from this polyphasic taxonomic study, it is proposed that strains FXJ1.526, FXJ1.725T and FXJ1.726 be classified as representatives of a novel species of the genus Streptomyces, with the name Streptomyces rubrisoli sp. nov. The type strain is FXJ1.725T ( = CGMCC 4.7025T = DSM 42083T).

2007 ◽  
Vol 57 (6) ◽  
pp. 1327-1330 ◽  
Author(s):  
Shoichi Hosoya ◽  
Akira Yokota

Two strains of gliding, agarolytic bacteria, strains YS10T and YML5, were isolated from coastal seawater off Kamogawa, Japan. Phylogenetic analysis based on 16S rRNA gene sequences showed that the novel isolates represent a separate lineage within the genus Flammeovirga. DNA–DNA hybridization values between these isolates and the type strains of species of the genus Flammeovirga were significantly lower than those accepted as threshold values for the phylogenetic definition of a species. Furthermore, some of the phenotypic characteristics indicate that the isolates differ from other Flammeovirga species. Based on these differences, it is suggested that the isolates represent a novel species, for which the name Flammeovirga kamogawensis sp. nov. is proposed. The type strain is YS10T (=IAM 15451T=NCIMB 14281T).


2011 ◽  
Vol 61 (7) ◽  
pp. 1662-1666 ◽  
Author(s):  
Anna Rusznyák ◽  
Erika M. Tóth ◽  
Peter Schumann ◽  
Cathrin Spröer ◽  
Judit Makk ◽  
...  

An alkalitolerant and moderately halophilic strain, designated KB23T, characterized by optimal growth at pH 8.0–9.0 and in the presence of 5–7 % (w/v) NaCl, was isolated from a reed (Phragmites australis) periphyton sample originating from an extremely shallow, alkaline soda pond located in Hungary. Cells of strain KB23T were Gram-stain-positive, motile straight rods. Strain KB23T was facultatively anaerobic, catalase-positive, oxidase-negative and contained peptidoglycan type A4β (l-Orn–d-Asp). MK-9(H4) was the predominant isoprenoid quinone and anteiso-C15 : 0, C16 : 0 and anteiso-C15 : 1 were the major cellular fatty acids. The DNA G+C content of strain KB23T was 74.8 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that this strain belongs to the genus Cellulomonas and that it is related most closely to Cellulomonas flavigena DSM 20109T (97.35 % similarity), Cellulomonas terrae DB5T (96.81 %), Cellulomonas iranensis OT (96.75), Cellulomonas chitinilytica X.bu-bT (96.60 %), Cellulomonas persica IT (96.53 %), Cellulomonas composti TR7-06T (96.45 %), Cellulomonas biazotea DSM 20112T (96.34 %) and Cellulomonas fimi DSM 20113T (96.20 %). According to these results, together with DNA–DNA hybridization and physiological data, strain KB23T is considered to represent a novel species of the genus Cellulomonas, for which the name Cellulomonas phragmiteti sp. nov. is proposed. The type strain is KB23T ( = DSM 22512T  = NCAIM B002303T).


2015 ◽  
Vol 65 (Pt_12) ◽  
pp. 4895-4901 ◽  
Author(s):  
Zhaoxu Ma ◽  
Chongxi Liu ◽  
Jianlong Fan ◽  
Hairong He ◽  
Chuang Li ◽  
...  

A novel actinobacterium, designated strain NEAU-QY2T, was isolated from the leaves of Sonchus oleraceus L. specimen, collected from Wuchang, Heilongjiang Province, China. A polyphasic study was carried out to establish the taxonomic position of this strain. The organism formed single spores with rough surfaces on substrate mycelia. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain NEAU-QY2T belonged to the genus Plantactinospora and formed a monophyletic clade with its closest related strains Plantactinospora endophytica YIM 68255T (99.2 % 16S rRNA gene sequence similarity), Plantactinospora veratri NEAU-FHS4T (98.8 %) and Plantactinospora mayteni YIM 61359T (98.7 %), an association that was supported by a bootstrap value of 90 % in the neighbour-joining tree and also recovered with the maximum-likelihood algorithm. However, DNA–DNA hybridization values between strain NEAU-QY2T and the three closely related strains were below 70 %. With reference to phenotypic characteristics, phylogenetic data and DNA–DNA hybridization results, strain NEAU-QY2T was distinguished from closely related strains and is classified as representing a novel species of the genus Plantactinospora, for which the name Plantactinospora sonchi sp. nov. is proposed. The type strain is NEAU-QY2T ( = CGMCC 4.7216T = JCM 30345T).


2007 ◽  
Vol 57 (9) ◽  
pp. 2052-2055 ◽  
Author(s):  
Tomohiko Tamura ◽  
Kazunori Hatano ◽  
Ken-ichiro Suzuki

Phylogenetic analysis of ‘Sarraceniospora aurea’ NBRC 14752 and strain NBRC 15120, based on 16S rRNA gene sequences, revealed that these organisms are related to members of the genus Actinocorallia. These organisms contained glutamic acid, alanine and meso-diaminopimelic acid as cell-wall amino acids and the menaquinones MK-9(H4), MK-9(H6) and MK-9(H8). The chemotaxonomic characteristics of the strains were consistent with those of the genus Actinocorallia. However, DNA–DNA hybridization and phenotypic characteristics revealed that the strains differed from the recognized species of the genus Actinocorallia. Therefore, we propose that ‘Sarraceniospora aurea’ NBRC 14752 and strain NBRC 15120 be reclassified in the genus Actinocorallia as a novel species, Actinocorallia aurea sp. nov. (type strain NBRC 14752T=DSM 44434T).


2011 ◽  
Vol 61 (4) ◽  
pp. 859-863 ◽  
Author(s):  
De-Chao Zhang ◽  
Hans-Jürgen Busse ◽  
Hong-Can Liu ◽  
Yu-Guang Zhou ◽  
Franz Schinner ◽  
...  

A non-motile, rod-shaped, red-pigmented bacterium, designated strain BZ33rT, was isolated from soil of an industrial site. Cells stained Gram-negative and were aerobic and psychrophilic, showing good growth at 1–20 °C. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain BZ33rT was related to members of the genus Hymenobacter and had highest sequence similarity with Hymenobacter aerophilus DSM 13606T (97.5 %). The predominant cellular fatty acids were anteiso-C15 : 0 (20.3 %), summed feature 3 (C16 : 1ω7c and/or iso-C15 : 0 2-OH; 20.2 %), iso-C15 : 0 (20.0 %), summed feature 4 (iso-C17 : 1 I and/or anteiso-C17 : 1 B; 8.2 %) and C16 : 1ω5c (7.9 %). Strain BZ33rT had MK-7 as the major menaquinone. The polyamine pattern contained sym-homospermidine as the major compound with moderate amounts of spermidine. Phosphatidylethanolamine, three unknown aminophospholipids, two unknown aminolipids, two unknown glycolipids and five unknown polar lipids were present in the polar lipid profile. The G+C content of the DNA was 61.6 mol%. On the basis of phenotypic characteristics, phylogenetic analysis and DNA–DNA relatedness data, strain BZ33rT is considered to represent a novel species of the genus Hymenobacter, for which the name Hymenobacter psychrophilus sp. nov. is proposed. The type strain is BZ33rT ( = DSM 22290T  = CGMCC 1.8975T  = LMG 25548T).


2015 ◽  
Vol 65 (Pt_11) ◽  
pp. 3824-3829 ◽  
Author(s):  
Arif Nurkanto ◽  
Puspita Lisdiyanti ◽  
Moriyuki Hamada ◽  
Shanti Ratnakomala ◽  
Chiyo Shibata ◽  
...  

Two actinomycete strains, designated LIPI11-2-Ac034T and LIPI11-2-Ac042T, were isolated from leaf litter collected from Cibodas Botanical Garden, West Java, Indonesia. Phylogenetic analysis based on 16S rRNA gene sequences suggested that both isolates belong to the genus Actinoplanes. These isolates were closely related to Actinoplanes ferrugineus and Actinoplanes durhamensis with similarity values of 98.2 % and 97.7 % respectively, for strain LIPI11-2-Ac034T, and 99.0 % and 97.4–97.7 % respectively for strain LIPI11-2-Ac042T. Both isolates grew well on ISP 7 medium with brown soluble pigment production. Spores were motile and sporangia were irregular. The isolates contained meso-diaminopimelic acid in cell-wall hydrolysates, and mannose, glucose and galactose in whole-cell hydrolysates. The predominant menaquinone of strain LIPI11-2-Ac034T was MK-9(H4) while that of strain LIPI11-2-Ac042T was MK-9(H6). The major cellular fatty acids were iso-C16 : 0, iso-C15 : 0 and anteiso-C15 : 0 for strain LIPI11-2-Ac034T, and iso-C16 : 0, anteiso-C15 : 0, iso-C15 : 0 and anteiso-C17 : 0 for strain LIPI11-2-Ac042T. Phosphatidylethanolamine was detected as the diagnostic polar lipid. The DNA G+C contents of strains LIPI11-2-Ac034T and LIPI11-2-Ac042T were 71.5 and 70.7 mol%, respectively. Based on the differential phenotypic characteristics and the results of DNA–DNA hybridization and phylogenetic analysis, it is proposed that strains LIPI11-2-Ac034T and LIPI11-2-Ac042T represent two novel species of the genus Actinoplanes, for which the names Actinoplanes tropicalis sp. nov. (type strain LIPI11-2-Ac034T = InaCC A459T = NBRC 110973T) and Actinoplanes cibodasensis sp. nov. (type strain LIPI11-2-Ac042T = InaCC A458T = NBRC 110974T) are proposed.


2011 ◽  
Vol 61 (9) ◽  
pp. 2227-2230 ◽  
Author(s):  
De-Chao Zhang ◽  
Hong-Can Liu ◽  
Yu-Guang Zhou ◽  
Franz Schinner ◽  
Rosa Margesin

A Gram-reaction-negative, strictly aerobic, motile, rod-shaped bacterium, designated strain BZ78T, was isolated from soil from an industrial site. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain BZ78T belonged to the family Rhodospirillaceae and formed a coherent cluster with the type strain of Tistrella mobilis (98.3 % pairwise similarity). The predominant cellular fatty acids of strain BZ78T were C18 : 1ω7c (58.3 %), C19 : 0ω8c cyclo (11.5 %), C18 : 1 2-OH (10.9 %) and C14 : 0 3-OH (6.4 %). The predominant ubiquinone was Q-10. The genomic DNA G+C content of strain BZ78T was 65.8 mol%. On the basis of phenotypic characteristics, phylogenetic analysis and DNA–DNA relatedness data, strain BZ78T is considered to represent a novel species of the genus Tistrella, for which the name Tistrella bauzanensis sp. nov. is proposed. The type strain is BZ78T ( = DSM 22817T  = CGMCC 1.10188T  = LMG 26047T).


2015 ◽  
Vol 65 (Pt_3) ◽  
pp. 1038-1043 ◽  
Author(s):  
Eu Jin Chung ◽  
Jeong Ae Park ◽  
Che Ok Jeon ◽  
Young Ryun Chung

An antifungal bacterial strain, designated YC6258T, was isolated from the rhizosphere of a halophyte (Carex scabrifolia Steud.) growing in a tidal flat area of Namhae Island, Korea. Cells of the strain were Gram-stain-negative, facultatively anaerobic, moderately halophilic, rod-shaped and motile by a single polar flagellum. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain YC6258T formed a phyletic lineage distinct from members of the most closely related genera, Saccharospirillum and Reinekea, with less than 91.2 % sequence similarities. The major cellular fatty acids were C18 : 1ω7c, C16 : 0 and Summed feature 3 (C16 : 1ω7c/ C16 : 1ω6c). The quinone system of strain YC6258T consisted mainly of ubiquinone Q-8. The polar lipid profile exhibited phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol and unknown lipids. The DNA G+C content was 48.9 mol%. Based on the phylogenetic and phenotypic characteristics, strain YC6258T should be classified as a representative of a novel species in a novel genus for which the name Gynuella sunshinyii gen. nov., sp. nov. is proposed. The type strain is YC6258T (KCCM 43015T = NBRC 109345T).


2007 ◽  
Vol 57 (6) ◽  
pp. 1227-1231 ◽  
Author(s):  
Keun Sik Baik ◽  
Mi Sun Kim ◽  
Eun Mi Kim ◽  
Hyung Rak Kim ◽  
Chi Nam Seong

A non-motile, rod-shaped, light-yellow-pigmented bacterium, designated strain WPCB159T, was isolated from freshwater samples collected from the Woopo wetland in Korea. The cells were Gram-negative, aerobic and catalase- and oxidase-positive. The major fatty acids were C16 : 1 ω7c (34.8 %), iso-C15 : 0 (24.2 %) and C16 : 0 (9.4 %). The DNA G+C content was 44 mol%. A phylogenetic tree based on 16S rRNA gene sequences showed that strain WPCB159T forms a lineage within the genus Dyadobacter (family ‘Flexibacteraceae’) and is closely related to Dyadobacter hamtensis HHS 11T (97.8 % sequence similarity) and to other members of the genus Dyadobacter (95.2–96.8 % sequence similarity). The phenotypic characteristics and DNA–DNA hybridization relatedness data indicate that strain WPCB159T should be distinguished from D. hamtensis HHS 11T. On the basis of the evidence presented in this study, strain WPCB159T represents a novel species of the genus Dyadobacter, for which the name Dyadobacter koreensis sp. nov. is proposed. The type strain is WPCB159T (=KCTC 12537T=NBRC 101116T).


2005 ◽  
Vol 55 (4) ◽  
pp. 1521-1524 ◽  
Author(s):  
Isao Yumoto ◽  
Kikue Hirota ◽  
Yoshinobu Nodasaka ◽  
Kenji Nakajima

A halotolerant, obligately alkaliphilic bacterium, R-2T, was isolated from the skin of a rainbow trout (Oncorhynchus mykiss), a freshwater fish. The strain is Gram-positive, ferments several carbohydrates, is rod-shaped and motile by peritrichous flagella and produces ellipsoidal spores. The isolate grows at pH 9–10 but not at pH 7–8. This micro-organism grows in 0–22 % (w/v) NaCl at pH 10. Its major cellular fatty acids are iso-C15 : 0, anteiso-C15 : 0 and anteiso-C17 : 0, the major isoprenoid quinone is MK-7 and the DNA G+C content is 38·5 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicates that strain R-2T is a member of the genus Oceanobacillus. DNA–DNA hybridization reveals low relatedness between the isolate and Oceanobacillus iheyensis (21·0 %). On the basis of phenotypic characteristics, phylogenetic data and DNA–DNA relatedness data, the isolate should be designated as a novel species, for which the name Oceanobacillus oncorhynchi sp. nov. is proposed. The type strain is R-2T (=JCM 12661T=NCIMB 14022T).


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